Cross-border US tax for expats, entrepreneurs and investors — compliant, optimised, and off your plate. Headquartered in Singapore, on the ground across 20+ countries.
No hard sell. A specialist reviews your situation.
The Leader of our US Tax Team has successfully completed the Comparative Tax Program at Harvard University. Read more…
Financial Services Review — 2026
Selected by the magazine’s editorial board through independent research and peer review.
Listed on the public registers anyone can check, and a member of the bodies that set the standards in US and international tax — not self-awarded seals.
Member of the AICPA
Member firm of Moores Rowland International
Member of the Florida Institute of CPAs
Member firm of ITPA
Member firm of IBSA
Member of the Worshipful Company of Tax Advisers
Authorized IRS E-file provider
Member firm of TTN
Member of AmCham Singapore
Member of AmCham Dubai
Member of AmCham Philippines
Member of AmCham Indonesia
Nine common situations. Pick yours — each leads straight to the specialists and the process for that exact problem.
You want a single, simple US return at the lowest possible price — if that's you, we'll happily point you somewhere cheaper.
Individual clients come to us with complex, multi-jurisdiction tax issues related to cross-border employment and investment opportunities. Similar to an interpreter or guide who helps travelers understand the language and customs of a particular country, we explain tax concepts and laws that are foreign to our clients. We prepare U.S. federal and state income tax returns for U.S. expatriates, foreign nationals and individuals with international financial interests.
Our international tax consulting expertise includes analysis of tax treaties, sourcing of income, and reporting of foreign bank accounts, as well as foreign corporations, partnerships and trusts. As consultants, we help individual clients develop cost-effective strategies, propose solutions and prepare individual tax projections. We also work closely with our clients' attorneys and other advisors to provide comprehensive advice
Hayden T Joseph or HTJ.Tax is an International Tax Advisor and does business as (DBA) Advanced American Tax.
Advanced American Tax (a member of Moores Rowland International) provides a range of professional taxation services catering primarily to anyone with US Tax exposure including American citizens and green card holders living outside of the US.
As international tax advisors, we provide consulting services to help clients navigate complex international tax situations. Our consulting expertise allows us to develop strategic plans tailored to each client's unique circumstances, with the goal of minimizing their overall tax liability. We have in-depth knowledge of international tax codes and treaties that we leverage to optimize international tax planning.
Moores Rowland International offers the full range of accounting services including audit, tax, accounting, payroll, risk advisory, IFRS, restructuring and transaction support.
Our clients are increasingly looking beyond their national borders for new opportunities. The close relationships within the network mean that clients can easily be connected to a like-minded firm of US tax professionals in another country, that they can be assured will have their business interests at heart – no matter what services are required or where they are needed providing unparalleled USA expat tax services.
We offer high quality US tax consulting and compliance services to companies and individuals.
We have significant experience assisting our clients with complicated, international tax issues.
The following list represents some of the areas in which we have provided both planning and compliance services for our clients:
Given the uniqueness of the U.S. Tax Code, we are perfectly positioned to assist American Citizens, American Permanent Residents (Green Card holders) and American companies who want to expand internationally with:
For American Citizens, American Permanent Residents (Green Card holders) and American companies already in Asia and Europe, we can assist with U.S. tax issues including -
As US tax advisors for Americans abroad, we provide tailored advice and guidance to help expats and global citizens stay compliant with US tax laws. Our specialized expertise in international tax codes allows us to develop strategic plans to reduce tax obligations for Americans overseas. We stay up-to-date on the latest IRS regulations and tax treaties to optimize international tax strategies.
We have earned decades of expertise in advising businesses of all types, as well as individuals, trusts, and estates. Here is where we step in to:
We provide round the clock support to private clients living overseas to optimise their tax bill.
We prevent double taxation for our clients by claiming the foreign tax credit where possible.
We help private clients with efficient yet legal tax structures. The United States is among a few countries that tax global income earned by their citizens living or working outside the US. Don't expect to avoid paying US taxes by living overseas. Instead, leave your tax challenges to us.
As a preferred American expat tax service, we have the experience, expertise, and global reach to help Americans abroad stay compliant. For decades, we have focused on the unique tax issues facing US expats and global citizens. Our team of advisors are well-versed in international tax codes and treaties, allowing us to develop optimized strategies to reduce tax obligations. With offices worldwide, we can provide timely, tailored advice no matter where you are located.
As US tax accountants, we understand the complex international tax issues facing American expats and global citizens. We stay up-to-date on changing IRS regulations and tax treaties to ensure we file accurate, timely US tax returns that minimize our clients' liabilities. Our expertise spans the full range of returns, including Form 1040, FBARS, FATCA, and more. You can truly count on our US expat tax advice.
Our US tax planning services utilize our specialized knowledge of international tax codes to optimize strategies for Americans abroad. We develop customized plans aimed at reducing tax obligations and maximizing foreign tax credits. With decades focused on US expats, our advisors have the experience to guide compliance and provide ongoing tax planning. Our US taxation services team educates American expats and global citizens on their international tax compliance obligations (our blog has got ~1,000 articles, and our YouTube channel has got plenty of videos).
We offer USA tax services tailored specifically to the needs of American expats and global citizens living overseas. Our advisors are experts at navigating international tax treaties and nuances to help clients stay compliant with US tax laws. We stay on top of changing IRS regulations to develop strategic plans aimed at minimizing your US tax liability.
English-speaking tax advisors on the ground in Asia, Europe, the Gulf, Africa and the Americas — someone senior is awake when you are.
Member firm of Moores Rowland International — 30+ affiliate offices worldwide.
Derren has made my life easier as a US expat living overseas. I haven't lived in the US since the 80's, and have run businesses in France and Singapore. Derren has helped eliminate a great deal of burdens and worries for me.
Derren Joseph were able to help us in our US Tax Compliance performing a detailed review of the last 9 years ensuring that all requirements of the IRS are fully satisfied. He is very helpful to our queries irregardless of the day and time. A customer service that you cannot find to any of the consultant out there. He displayed his commitment not only to the Company that he is working with but also his commitment to truly help his client have a peaceful mind knowing that there is someone looking at our back even at night....Highly recommended not only because of his credentials but also because of his professional work ethics.
Hi Derren, Really appreciate your work for me re-claiming withholding tax in USA. Great Job. Many Thanks Brian
Derren was very highly recommended by business friends to solve my very complicated US Tax problem. From our very first meeting he was friendly and easy to understand and carefully explained what was needed initially. His patience with me and my hearing problem was amazing. Throughout he described, in detail, the individual results of his review from the mountain of files. Derren was very efficient and professional during the entire period. He was immediately available and forthcoming of any and all questions. His knowledge of IRS requirements and regulations is supreme. He produced the final results on IRS forms much sooner than expected. I highly recommend Derren for any US Tax matters.
I worked with Derren for my US personal tax return after a friend referred him. I found him to be very knowledgable about any issue asked, and equally important for me, to be very promt with responses. His was a very high quality work with excellent customer service. I used other tax services in the past and can say with confidence that Derren's was a grade above.
Excellent service from Derren, he answered all questions quickly and thoughtfully pertaining my situation. I would highly recommend him for tax returns to the USA! Thanks again.
Derren offers clear, concise, yet detailed and thorough information on all aspects of tax preparation and protection. He is able to internalize complex issues and proposals, then simplifies them for his clients so everyone is comfortable. It's been a pleasure using Derren's expertise to build businesses in many geographies with varying tax codes. I highly recommend Derren for any tax issue.
Darren is solid, professional, and direct. All commendable attributes. He is providing tax service and advisory to me on a personal and professional basis. Everything is being done to my satisfaction. I therefore recommend him to others looking for same.
I highly recommend Derren. I have been his client for a number of years now and as an expat in Singapore have relied on his professional and timely service. He will answer immediately any question you have regarding taxes no matter how complicated (or simple) and help you navigate the process in a seamless fashion. A real professional!
Derren provided me with timely, valuable and accurate advice regarding my USA tax amnesty and compliance requirements, all on very short notice. He is qualified, competent and service-oriented and I highly recommend him.
Derren did my USA taxes for me last year. He was highly knowledgeable, efficient and available to answer all my questions. I highly recommend Derren.
Derren has been my first port of call for any US based tax questions for 3 years now. The complexity of my tax liability as a US person living abroad and a business owner has the potential to be a nightmare, and Derren makes that go away for me. Derren's service is invaluable for any US person living abroad.
Derren was professional and quick to respond to my queries. In addition, he helped me when NY State made an error in calculating my refund.
Derren is always incredibly responsive and prompt in everything that he does. He was able to turn around literally in days with my tax return when my previous provider took weeks to do so.
Continually Delivers is the phrase that comes to mind when I think about Derren. I've come across a lot of knowledgeable tax specialists in the past but where Derren differentiates himself from the pack is the way he can take his understanding of complex issues and transfer them in a way clients can comprehend and appreciate. I will continue to use Derren with clients that need additional support in the tax arena any chance I get and I look forward to frequently using him going forward.
The team at Hayden T Joseph CPA were able to address my international tax issues in a competent, professional manner and I highly recommend them.
Derren is highly knowledgeable on US and foreign tax matters. He has strong communication and reverts with clear/definitive answers with very quick turnaround. He makes sure to keep you updated on the status and delivers requirements well in advance of deadlines. Good results delivered with an easy / client centric process.
I worked with Derren for the Singapore Income Tax issues for American Expats. I found him very well knowledgeable in International Tax and he is a very nice person. I am happy to work with him and of course highly recommend Derren.
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